Synthesis of compounds presenting three and four anthracene units as potential connectors to mediate infinite lateral growth at the air/water interface.
We report the synthesis of molecular sheets based on the photochemically initiated dimerization of monomers with lateral anthracene units. The film thickness and composition were investigated by ellipsometry and X-ray photoelectron spectroscopy (XPS). The mechanical stability of the film was sufficient to span it over 45x45 microm-sized holes. Several model reactions were performed to illustrate the underlying chemistry and to assist in analysis. The reported experiments are considered first steps towards the ultimate goal of the rational synthesis of laterally "infinite", one-monomer-unit-thick molecular sheets with a long-range positional order and a periodic covalent-bonding pattern. Such sheets are referred to as 2D polymers and are considered a prime goal of chemical synthesis with intriguing applications.
Münzenberg
Cindy
C
Department of Materials, Institute of Polymers, HCI 541, ETH Zürich, 8093 Zürich, Switzerland.
Rossi
Antonella
A
Feldman
Kirill
K
Fiolka
Reto
R
Stemmer
Andreas
A
Kita-Tokarczyk
Katarzyna
K
Meier
Wolfgang
W
Sakamoto
Junji
J
Lukin
Oleg
O
Schlüter
A Dieter
AD
D000388:Air; D000873:Anthracenes / Q000138:chemical synthesis* / Q000737:chemistry; D019281:Dimerization; D009682:Magnetic Resonance Spectroscopy; D008567:Membranes, Artificial; D015394:Molecular Structure; D010316:Particle Size; D010777:Photochemistry; D013053:Spectrophotometry; D013499:Surface Properties; D014867:Water / Q000737:chemistry*; D014965:X-Rays
D000873:Anthracenes; D008567:Membranes, Artificial; D014867:Water; C034020:anthracene